DISCRIMINATION BETWEEN LONG SLAG AND SHORT SLAG
CHU SHAOJUN,
LIU HAIHONG,
DIAO SHUSHENG,
XU TING
Abstract:
Based on observed η vs T relationships for silicate melts and CaF2-based slag melts, the Rmin is raised to discriminate between long slag and short slag by quoting the mathematical concept of curvature radius. The Rmin values of the smallest curvature radius of η vs T plot implicate the apparent activation energy Eη,hemispherical softening point temperature T0 and viscosity ηR at the character temperature TR. Using CaF2 and SiO2 as reference standard of short slag and long slag respectively, the classification of slags has been made. Calculation of Rmin for flux or slag is of significance in ESR, protective casting and welding.